diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-03 13:44:46 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 09:12:14 (GMT) |
| commit | bd31b85960a7fcb2d7ede216460b8da71a88411c (patch) | |
| tree | f2ab1a1105705856c5cdfc71bcf3f7b5f897d30d /arch/arm/include/asm/dma.h | |
| parent | a1741e7fcbc19a67520115df480ab17012cc3d0b (diff) | |
| download | linux-bd31b85960a7fcb2d7ede216460b8da71a88411c.tar.xz | |
locking, ARM: Annotate low level hw locks as raw
Annotate the low level hardware locks which must not be preempted.
In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/include/asm/dma.h')
| -rw-r--r-- | arch/arm/include/asm/dma.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h index 628670e..69a5b0b 100644 --- a/arch/arm/include/asm/dma.h +++ b/arch/arm/include/asm/dma.h @@ -34,18 +34,18 @@ #define DMA_MODE_CASCADE 0xc0 #define DMA_AUTOINIT 0x10 -extern spinlock_t dma_spin_lock; +extern raw_spinlock_t dma_spin_lock; static inline unsigned long claim_dma_lock(void) { unsigned long flags; - spin_lock_irqsave(&dma_spin_lock, flags); + raw_spin_lock_irqsave(&dma_spin_lock, flags); return flags; } static inline void release_dma_lock(unsigned long flags) { - spin_unlock_irqrestore(&dma_spin_lock, flags); + raw_spin_unlock_irqrestore(&dma_spin_lock, flags); } /* Clear the 'DMA Pointer Flip Flop'. |